Page 40 - Radiation Safety
P. 40

ROUNDING NUMBERS









                                            Numbers can be rounded to the nearest ten (tenth), the


                                            nearest hundred (hundredth), the nearest thousand

                                            (thousandth), and so on.







                                            How to round numbers

                                                  Rule #1: Round-up



                                                      If numbers to the right are  5                                       i.e.  5, 6, 7, 8, 9

                                                      it should be rounded up




                                                  Rule #2: Round-down


                                                      If numbers to the right are  5                                     i.e. 1, 2, 3, 4


                                                      should be rounded down
   35   36   37   38   39   40   41   42   43   44   45